Biology Placement Test UPDATED
ACTUAL Exam Questions and CORRECT
Answers
What defines living organisms separate from non-living things? - CORRECT ANSWER✔✔-
Living things are made up of basic units called cells, are based on a universal genetic code,
obtain and use materials and energy, grow and develop, reproduce, respond to their
environment, maintain a stable internal environment, and change over time
Discuss the scientific method and its use in acquiring knowledge. - CORRECT
ANSWER✔✔- Involves observing and asking questions, making inferences and forming
hypotheses, conducting controlled experiments, collecting and analyzing data, and drawing
conclusions
What are atoms? - CORRECT ANSWER✔✔- The basic units of matter
What are atoms made of? - CORRECT ANSWER✔✔- Made of protons, neutrons, and
electrons
How do we define and recognize one type of atom from another? - CORRECT
ANSWER✔✔- By looking at the number of protons in the nucleus
How are atoms held together into molecules? - CORRECT ANSWER✔✔- They attach to
other atoms to make a covalent bond. If there are 4 attached atoms, it is a double bond. If
there are 6 attached atoms, it is a triple bond
Discuss the structure and function of the major types of large molecules found in living
organisms. - CORRECT ANSWER✔✔- Van der Waals forces are a slight attraction that
develops between oppositely charged regions of nearby molecules. They aren't as strong as
ionic and covalent bonds, but they hold molecules together, especially the large ones
What are special properties of water? - CORRECT ANSWER✔✔- Water is a polar molecule
and it is able to form multiple hydrogen bonds
, How do the properties of water benefit living organisms? - CORRECT ANSWER✔✔- Water
is the best solvent on Earth. It is able to dissolve both ionic compounds and other polar
molecules
What are the two different types of cells found in living organisms? - CORRECT
ANSWER✔✔- Prokaryotic and eukaryotic cells
How are prokaryotic and eukaryotic cells different? - CORRECT ANSWER✔✔- Prokaryotic
cells don't have a nucleus and eukaryotic cells have a nucleus, where they separate the
genetic information from the rest of the cell
Organelles - CORRECT ANSWER✔✔- Many of the structures in cells; called "little organs"
Cytoplasm - CORRECT ANSWER✔✔- The portion of the cell outside the nucleus
Vacuoles - CORRECT ANSWER✔✔- Store materials like water, salts, proteins, and
carbohydrates
Lysosomes - CORRECT ANSWER✔✔- Break down lipids, carbohydrates, and proteins into
small molecules that can be used by the rest of the cell. They are also involved in breaking
down organelles that have outlived their usefulness
Cytoskeleton - CORRECT ANSWER✔✔- Helps the cell maintain its shape and is also
involved in movement
Microfilaments - CORRECT ANSWER✔✔- Threadlike structures made up of a protein
called actin
Microtubles - CORRECT ANSWER✔✔- A hollow structure made up of proteins known as
tubulins
Centrioles - CORRECT ANSWER✔✔- Located near the nucleus and help organize cell
division. Not found in plant cells
ACTUAL Exam Questions and CORRECT
Answers
What defines living organisms separate from non-living things? - CORRECT ANSWER✔✔-
Living things are made up of basic units called cells, are based on a universal genetic code,
obtain and use materials and energy, grow and develop, reproduce, respond to their
environment, maintain a stable internal environment, and change over time
Discuss the scientific method and its use in acquiring knowledge. - CORRECT
ANSWER✔✔- Involves observing and asking questions, making inferences and forming
hypotheses, conducting controlled experiments, collecting and analyzing data, and drawing
conclusions
What are atoms? - CORRECT ANSWER✔✔- The basic units of matter
What are atoms made of? - CORRECT ANSWER✔✔- Made of protons, neutrons, and
electrons
How do we define and recognize one type of atom from another? - CORRECT
ANSWER✔✔- By looking at the number of protons in the nucleus
How are atoms held together into molecules? - CORRECT ANSWER✔✔- They attach to
other atoms to make a covalent bond. If there are 4 attached atoms, it is a double bond. If
there are 6 attached atoms, it is a triple bond
Discuss the structure and function of the major types of large molecules found in living
organisms. - CORRECT ANSWER✔✔- Van der Waals forces are a slight attraction that
develops between oppositely charged regions of nearby molecules. They aren't as strong as
ionic and covalent bonds, but they hold molecules together, especially the large ones
What are special properties of water? - CORRECT ANSWER✔✔- Water is a polar molecule
and it is able to form multiple hydrogen bonds
, How do the properties of water benefit living organisms? - CORRECT ANSWER✔✔- Water
is the best solvent on Earth. It is able to dissolve both ionic compounds and other polar
molecules
What are the two different types of cells found in living organisms? - CORRECT
ANSWER✔✔- Prokaryotic and eukaryotic cells
How are prokaryotic and eukaryotic cells different? - CORRECT ANSWER✔✔- Prokaryotic
cells don't have a nucleus and eukaryotic cells have a nucleus, where they separate the
genetic information from the rest of the cell
Organelles - CORRECT ANSWER✔✔- Many of the structures in cells; called "little organs"
Cytoplasm - CORRECT ANSWER✔✔- The portion of the cell outside the nucleus
Vacuoles - CORRECT ANSWER✔✔- Store materials like water, salts, proteins, and
carbohydrates
Lysosomes - CORRECT ANSWER✔✔- Break down lipids, carbohydrates, and proteins into
small molecules that can be used by the rest of the cell. They are also involved in breaking
down organelles that have outlived their usefulness
Cytoskeleton - CORRECT ANSWER✔✔- Helps the cell maintain its shape and is also
involved in movement
Microfilaments - CORRECT ANSWER✔✔- Threadlike structures made up of a protein
called actin
Microtubles - CORRECT ANSWER✔✔- A hollow structure made up of proteins known as
tubulins
Centrioles - CORRECT ANSWER✔✔- Located near the nucleus and help organize cell
division. Not found in plant cells
